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Diss Factsheets
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EC number: 911-168-8 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- February 28, 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- adopted July 27, 1995
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
- Version / remarks:
- adopted May 12, 1981
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- The test item was used in its initial form.
- Melting / freezing pt.:
- ca. 263.9 - ca. 296.5 °C
- Conclusions:
- The substance starts to melt at ca 260 °C.
- Executive summary:
The thermal behaviour of the test item was investigated by Differential Scanning Calorimetry method, according to the OECD guidelines 102 and 113. A small amount of test item placed in aluminum cosed crucible and inserted into the furnace of the DSC device. The temperature was increased from 25 to 500 °C with 10 °C/minutes heating rate. The measurement was performed under nitrogen atmosphere. The experiment was performed in duplicate.
A supplementary test was run, in order to clarify the substance thermal behavior. A small amount of test item was placed in aluminum crucible the furnace of the DSC device was heated from 25 to 263 °C with 10 °C/minutes heating rate, than cooled down to 25 °C.
The test item showed endothermic signal in the temperature range of approx. 240 – 260 °C. In order to determine if this signal associated with melting of any constituent of test item or not, a Supplementary test was performed. During the first heating, the appearance, consistency and weight of the test item did not change in the crucible. During the cooling phase no thermal effects were observed from 263 to 25 °C. In the second heating, this observed endothermic peak was no longer appeared on the thermogram and during the cooling phase no thermal effects were observed also. Therefore, it is concluded that the test item did not melt in the crucible up to 263 °C.
Before the test the appearance of the substance was yellow powder; after the experiments the test item became a yellow melt with bubbles and with dark brown trim around the melt.
Applying a linear heating rate, the melting point of test item was determined to be in the range of 263.9 – 296.5 °C (537.1 – 569.6 K).
Conclusion
The substance starts to melt at ca 260 °C.
Reference
Before the test the appearance of the substance was yellow powder; after the experiments the test item became a yellow melt with bubbles and with dark brown trim around the melt.
Sample weight [mg] | Total loss of Mass of the Sample (%) | Onset of effect [°C] | Endset of effect [°C] | Left Limit [°C] | Right Limit [°C] | Energy [J/g] | |
Replicate 1 | 2.66 | 34.2 | 264.26 | 281.09 | 264.26 | 296.27 | 56.60 (endothermic) |
Replicate 2 | 2.40 | 27.1 | 273.45 | 278.83 | 263.61 | 296.69 | 51.73 (endothermic) |
Mean |
263.94 | 296.48 | 54.17 (endothermic) |
The test item showed endothermic signal in the temperature range of approx. 240 – 260 °C. In order to determine if this signal associated with melting of any constituent of test item or not, a Supplementary test was performed.
During the first heating, the appearance, consistency and weight of the test item did not change in the crucible. During the cooling phase no thermal effects were observed from 263 to 25 °C. In the second heating, this observed endothermic peak was no longer appeared on the thermogram and during the cooling phase no thermal effects were observed also. Therefore it is concluded that the test item did not melt in the crucible up to 263 °C.
Description of key information
melting point in the range of 263.9 – 296.5 °C
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 264 °C
Additional information
OECD guideline 102 and 113
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